I just saw a job posting that said the person would be answering level 4 helpdesk... Am I the only one who's not heard of that? Was that just a stupid HR typo?

We are considered Level 5 desk here. There are more than four tiers beneath us. There are more than four tiers just within UNIX server support let alone UNIX desktop and the actual helpdesks and support teams.

One person was both Tier 1 and Tier 2, another was 3, and the third was 4.

So it was like a 3 tier system with different titles.

LOL

I can just picture the first person finishing a powered-on/plugged-in script, saying "One moment while I transfer you to Tier 2 support" pressing hold, waiting 3 minutes, taking them off hold, and saying "Tier 2 support, how can I help you?"

We are considered Level 5 desk here. There are more than four tiers beneath us. There are more than four tiers just within UNIX server support let alone UNIX desktop and the actual helpdesks and support teams.

Intuit had a Tier 4 for a while, but it involved troubleshooting multiple products, going on site to handle super critical customer issues, and other superhuman ability type things. I don't think they had anyone at that level by the time I was there, but it was still listed in the career progression books.